I want to apologize to long-timers, I know I post this ALOT, but it gets asked ALOT. Hell, there's probably a "savage won't wheelie" thread in the first few pages.
Here's a link with a video of a Stock SS25, acroll down 4-5 posts for how to tune your LSN. A hump pack and a linkage mod really get the carb open much quicker too, but see what can be done stock:
http://www.rcuniverse.com/forum/fb.asp?m=2389010